This paper studied the effects of cutting parameters (cutting speed, cutting depth, feed-rate) on the characteristics of chip and cutting force in high-speed milling of A6061 aluminum alloy using FEM with ABAQUS/Explicit commercial software. First, a FE model was created based on the Bao-Wierzbicki (B-W) material fracture model, which was extended from the Morh-Coulomb criteria. The simulation model was verified by comparing the morphologies of simulated chip and that obtained by SEM. Then, the effects of cutting paramters on the chip morphology, chip shrinkage coefficient and cutting force were investigated. The simulation results showed that the chip morphology significantly depends on the cutting speed. The explicit formulae, which reflect the relationship between cutting parameters on chip shrinkage coefficient and cutting force, were finally proposed.
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TẠP CHÍ KHOA HỌC VÀ CÔNG NGHỆ Giấy phép số37/GP-BTTTT (15/01/2021) Giấy phép sửa đổi, bổ sung số140/GP-BTTTT (05/3/2021) Đơn vị cấp phép:Bộ Thông tin và Truyền thông Cơ quan chủ quản:Trường Đại học Bách Khoa Hà Nội Phó tổng biên tập phụ trách:GS. Đinh Văn Phong